Physics A periscope works on the principle of Refraction Diffraction Total internal reflection Reflection Refraction Diffraction Total internal reflection Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre? 12.33 diopters -12.33 diopters 4.33 diopters -4.33 diopters 12.33 diopters -12.33 diopters 4.33 diopters -4.33 diopters ANSWER DOWNLOAD EXAMIANS APP
Physics A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct? The speeds of both the photons in vacuum are different The frequency of X-ray photon is higher than the frequency of visible radiation photon. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. Both the photons have different energies. The speeds of both the photons in vacuum are different The frequency of X-ray photon is higher than the frequency of visible radiation photon. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. Both the photons have different energies. ANSWER DOWNLOAD EXAMIANS APP
Physics A device which is used to limit the current in an electrical circuit is called a Grid Fuse Hub Conductor Grid Fuse Hub Conductor ANSWER DOWNLOAD EXAMIANS APP
Physics Gravitational force is maximum at which place Poles Tropic of cancer Equator Tropic of capricorn Poles Tropic of cancer Equator Tropic of capricorn ANSWER DOWNLOAD EXAMIANS APP
Physics What is the unit of the physical quantity Entropy? Newton per kelvin Pascal per kelvin Joule per kelvin Watt per kelvin Newton per kelvin Pascal per kelvin Joule per kelvin Watt per kelvin ANSWER DOWNLOAD EXAMIANS APP
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